With a three-stage filtration action guaranteeing 99.99% effectiveness, the Arcadia Air 3300 nuclear, biological, and chemical (NBC) filter ventilation system pumps out 300m3/h of fresh air for up to 30 people. Its 150 W power rating guarantees high-intensity usage for as long as required, and the triple-failsafe design includes a power unit, powerful backup battery, and a 2.6 kW backup generator—ensuring reliable operation even in the event of a mains and battery failure. Noise of operation is an impressive 61dBA: just over the level of normal conversation. The carbon filter is capable of scrubbing all known warfare gas from the air, as well as radioactive material, biological agents; exhaust gases, acidic gases, volatile organic compounds, iodine organic compounds, and more. Filtered harmful particles down to 0.3 microns (micrometres) are captured and stored in a hermetically-sealed
unit for safe disposal. The system is fitted with a USB charger to keep mobile communications devices powered during a panic event. And it is available with optional add-ons including a mains socket, offering an excellent solution for the continued operation of other devices (for example a laptop) in blackout conditions. Other augmentations include a pressure indicator, an HVAC unit, an O2 indicator, and a replacement battery.